Stafsjö – MV Standard Knife Gate ValveEnquire Now

Standard Knife Gate Valve

Quick & Easy Maintenance

Uni-directional

Reliable Zero Leakage Shut-Off

High Strength Top Works

BRAND: StafsjöCATEGORY: Knife Gate Valves

Stafsjö MV: Reliable Knife Gate Valve for Tough Applications

The Stafsjö MV knife gate valve is engineered for reliable isolation, on/off and control applications in demanding industries. Designed for both dry and wet media, it effectively handles pulp stock (up to 7% consistency), sludge, slurries, biomass, water, ash, granules, pellets, and various waste types.

For plant engineers, production managers, and maintenance technicians, this means:

Reliable shut-off performance – A beveled-edge gate ensures smooth cutting through challenging media, while precision-machined body cams provide secure uni-directional sealing.
Modular design for process adaptability – Available in stainless steel, nodular iron, and high-alloy materials like Duplex and 254 SMO, with multiple actuator and seat material options to suit process conditions.
Leak-proof gland sealing – The TwinPack packing system prevents media from escaping, with optional enhancements such as a box bottom scraper or double gland for the most demanding applications.
Minimal maintenance and quick servicing – A mechanically locked retainer ring allows easy seat replacement, reducing downtime and simplifying valve reconditioning.

With proven installations in pulp & paper, chemical processing, mining, and biomass industries, the MV knife gate valve delivers superior durability and process efficiency.

Our Valve Repair Centres in Secunda and Durban provide full repair, reconditioning, automation, and testing services to keep your Stafsjö MV valve performing at its best.

Reduce Downtime. Improve Process Control. Ensure Reliable Sealing.

Download the Stafsjö MV Brochure

Request a Quote by Email

Contact us Today – Tel: 0861 103 103

Valve Repair Services

Specifications

Series	MV
Design	Standard Knife Gate with a proven global track record
Features	Ex stock South Africa up to DN300 / 12″ Wide range of applications Simple maintenance One piece body design Modular design Packing system in TwinPack Robust top works Easy to change seats with the retainer ring Low life cycle costs
Size Range	DN 50 – 1600 / 2″ – 64″
Pressure Rating	PN 10 / ANSI 150
Temperatures	SS up to 400°C
End Connections	Wafer
Blade Materials	Stainless steel / Hard chromed
Max Pressure	16 bar @ 20°C
Body Materials	Stainless Steel / Cast Iron / Other materials on request
Seat Materials	PTFE / EPDM / Viton / Nitrile / Polyurethane / Metal
Options & Accessories	Manual, pneumatic or electric actuators Chain wheel Open close limit switches Valve Positioners
Applications	Where you are looking for knife gate valve with a proven global track record for a wide range of applications like low consistency pulp < max. 7% / Black liquor / White liquor / Water, sewage and sludge / Powder / Pellets / Slurries.